Patents Assigned to Champion Equipment Corp.
  • Cutting bit
    Patent number: 6663186
    Abstract: A cutting bit has a bit body, and a cutting element formed as a trihedron with three faces which form three rock destructing blades, so that the cutting bits can be turned to orient alternatively a respective one of the rock destructing blades in a cutting direction in the event of dulling or breaking of another one of the rock destructing blades.
    Type: Grant
    Filed: June 28, 1999
    Date of Patent: December 16, 2003
    Assignee: Champion Equipment Corp.
    Inventors: Yuriy Kosobrodov, Vincent Jue
  • Method of cutting and a cutting rotative bit
    Patent number: 5799741
    Abstract: A cutting, self-rotating, and self-sharpening tool has a rotatable cutting element, generally circular, which is mounted and displaced so that cutting element has an attack angle between 90.degree. and 120.degree., and a skew angle between 5.degree. and 40.degree.. The cutting element has a convex front face and relief and rake angles that vary along the perimeter of the cutting edge.
    Type: Grant
    Filed: February 26, 1996
    Date of Patent: September 1, 1998
    Assignee: Champion Equipment Corp.
    Inventors: Yuriy Kosobrodov, Vincent Jue